WO2021260963A1 - 異材接合構造及び異材接合方法 - Google Patents

異材接合構造及び異材接合方法 Download PDF

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Publication number
WO2021260963A1
WO2021260963A1 PCT/JP2020/041086 JP2020041086W WO2021260963A1 WO 2021260963 A1 WO2021260963 A1 WO 2021260963A1 JP 2020041086 W JP2020041086 W JP 2020041086W WO 2021260963 A1 WO2021260963 A1 WO 2021260963A1
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WO
WIPO (PCT)
Prior art keywords
fastening member
plate material
protrusion
bolt
zagane
Prior art date
Application number
PCT/JP2020/041086
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
正明 三浦
誠司 三浦
宏治 迫田
Original Assignee
セキ工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by セキ工業株式会社 filed Critical セキ工業株式会社
Priority to KR1020227043922A priority Critical patent/KR20230028276A/ko
Priority to EP20942070.2A priority patent/EP4140631A4/en
Priority to CN202080100907.9A priority patent/CN115605311A/zh
Publication of WO2021260963A1 publication Critical patent/WO2021260963A1/ja
Priority to US17/994,285 priority patent/US20230091592A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F16B37/061—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
    • B23K11/004—Welding of a small piece to a great or broad piece
    • B23K11/0046—Welding of a small piece to a great or broad piece the extremity of a small piece being welded to a base, e.g. cooling studs or fins to tubes or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/14—Projection welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
    • B23K11/20—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of different metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • B23K2103/20—Ferrous alloys and aluminium or alloys thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread

Definitions

  • the present invention relates to a dissimilar material joining structure and a dissimilar material joining method.
  • Spot welding is often used for welding steel materials, but in recent years, in order to use lightweight materials such as aluminum from the viewpoint of weight reduction of machines and tools, attempts have been made to join two members of different materials by spot welding. Has been made.
  • a second plate material and a third plate material that can be spot welded to each other are superposed on both sides of the first plate material.
  • the first plate material is made of a material different from the second plate material and the third plate material, and has a positioning hole.
  • the first plate material is not welded to the second plate material and the third plate material.
  • the second plate material is formed with positioning protrusions corresponding to the positioning holes of the first plate material. The positioning protrusion is fitted into the positioning hole of the first plate material, and the second plate material and the third plate material are spot welded in the positioning protrusion fitted in the positioning hole of the first plate material.
  • the second plate material and the third plate material are welded through the positioning holes of the first plate material, and no foreign first plate material is interposed in the welded portion, so that the welding strength thereof. Will be high. Thereby, the joining of these three plate materials can be strengthened.
  • a fastening member for example, a welding nut with a protrusion (projection nut) may be joined to the plate material in advance by spot welding.
  • weld nut and the plate material are formed of materials different from each other, it is difficult to secure the joint strength (weld strength) between the weld nut and the plate material.
  • the present invention has been made in view of these points, and the main object thereof is to eliminate the need for a dedicated member used only for joining a fastening member made of different materials and a plate material. There is something in it.
  • the dissimilar material welding structure according to the present invention is a plate material, a first fastening member which is one of a nut and a bolt and is arranged on the surface of the plate material, and is arranged on the back surface of the plate material.
  • a first fastening member and a weldable bolt are provided, and the first fastening member and the plate material are made of materials different from each other, and at least one of the first fastening member and the bolt.
  • the seat surface is provided with a protrusion, the first fastening member corresponds to the second fastening member which is the other of the nut and the bolt, and the plate material is the first fastening member.
  • a bolt through hole is provided on the central axis of the member, and a bolt through hole for passing the bolt of the first fastening member and the second fastening member, and the protrusion is provided around the bolt through hole. It has a protrusion through hole through which the first fastening member is not directly welded to the plate material, and the first fastening member and the zagane penetrate each other in the protrusion through the protrusion through hole. By being welded, it is joined to the above plate material.
  • the first fastening member is not directly welded to the surface of the plate material, but the first fastening member is welded to the back surface side of the plate material in a state where the protrusion is penetrated through the protrusion through hole. do. That is, the first fastening member is joined to the surface of the plate material by welding the first fastening member and the Zagane to each other through the protrusion through holes (projections) with the plate material sandwiched between them.
  • the first fastening member can be joined to the plate material.
  • the bolt of the first fastening member and the second fastening member is passed through the bolt through hole of the zagane and the plate material. Tighten the second fastening member to the first fastening member.
  • the first fastening member tries to rotate with respect to the plate material due to the tightening torque when the second fastening member is tightened to the first fastening member.
  • the first fastening member and the Zagane are welded to each other through the protrusion through holes (projections) with the plate material sandwiched between them, so that they are in a state of being crimped to both sides of the plate material.
  • the Zagane may have not only the function of joining the first fastening member to the plate material but also the function of suppressing the rotation of the first fastening member with respect to the plate material. Further, when the part is made of a flexible material such as aluminum, resin, fiber, etc., the Zagane may also have a function of preventing loosening of the second fastening member.
  • the Zagane since the Zagane may have a function other than the function of joining the first fastening member to the plate material, it is dedicated only for joining the first fastening member to the plate material. It is not necessary to prepare the members of.
  • the protrusion and the protrusion through hole are each formed longer in the normal direction than in the tangential direction centered on the central axis.
  • the outer peripheral surface facing the tangential direction in the protrusion of the first fastening member or the Zagane becomes the inner peripheral surface facing the tangential direction in the protrusion through hole of the plate material. Be pressed. According to such a configuration, the contact area between the outer peripheral surface facing the tangential direction of the protrusion and the inner peripheral surface facing the tangential direction of the protrusion through hole can be increased. As a result, the stress (pressing force / contact area) received from the outer peripheral surface of the inner peripheral surface facing the tangential direction of the protrusion through hole facing the tangential direction of the protrusion can be reduced. Therefore, a larger tightening torque can be tolerated.
  • the Zagane is fitted in a recess provided on the back surface of the plate material.
  • the cross-sectional shapes of the zagane and the recess are polygonal shapes corresponding to each other.
  • the first fastening member tries to rotate with respect to the plate material due to the tightening torque when the second fastening member is tightened to the first fastening member.
  • the Zagane is pulled by the protrusion and tries to rotate with respect to the plate material.
  • the rotation of the Zagane can be suppressed. That is, the rotation of the first fastening member welded to the Zagane can also be suppressed.
  • the first fastening member is a nut
  • the second fastening member is a bolt
  • the protrusion is provided on the seat surface of the first fastening member.
  • the dissimilar material joining method according to the present invention is a dissimilar material joining method for joining a first fastening member, which is either a nut or a bolt, to a plate material made of a material different from the first fastening member.
  • a first fastening member which is either a nut or a bolt
  • the first fastening member is used as the plate material.
  • a protrusion is provided on the bearing surface of at least one of the first fastening member and the Zagane, and the first fastening member is any one of a nut and a bolt.
  • the plate material has a bolt through hole for passing the bolt of the first fastening member and the second fastening member, and the bolt through hole. It has a protrusion through hole provided in the periphery and penetrates the protrusion, and in the joining step, the first fastening member and the nut are welded to each other in the protrusion penetrated through the protrusion through hole. To join the first fastening member to the plate material.
  • FIG. 1 is a front sectional view showing a dissimilar material joining structure according to an embodiment of the present invention.
  • FIG. 2 is a front view of the weld nut.
  • FIG. 3 is a plan view showing the bearing surface of the weld nut.
  • FIG. 4 is a plan view showing the back surface of the plate material.
  • FIG. 5 is a plan view of Zagane.
  • FIG. 6 is a view showing a mode in which the outer peripheral surface of the protrusion is pressed against the inner peripheral surface of the protrusion through hole by the tightening torque when the component assembly bolt is tightened to the weld nut, as viewed from the back surface side of the Zagane. Is.
  • FIG. 6 is a view showing a mode in which the outer peripheral surface of the protrusion is pressed against the inner peripheral surface of the protrusion through hole by the tightening torque when the component assembly bolt is tightened to the weld nut, as viewed from the back surface side of the Zagane.
  • FIG. 7 is a diagram showing recesses on the back surface of the Zagane and the plate material according to other embodiments.
  • FIG. 8 is a view corresponding to FIG. 1 according to another embodiment (when a protrusion is provided on the seat surface of the Zagane).
  • FIG. 9 is a view corresponding to FIG. 1 according to another embodiment (when the first fastening member is a welding bolt and the second fastening member is a nut for assembling parts).
  • the dissimilar material joining structure 1 is a structure for joining a welding nut 10 as a first fastening member to a plate-shaped plate material 20.
  • X indicates the central axis of the weld nut 10.
  • the front side of the plate material 20 means the side on which the welding nut (first fastening member) 10 is arranged
  • the back side of the plate material 20 means the side on which the Zagane 30 described later is arranged, and the plate material. It has nothing to do with the front and back of 20 itself.
  • the welding nut 10 is made of, for example, steel.
  • the plate material 20 is made of, for example, aluminum (including an aluminum alloy). That is, the welding nut 10 and the plate material 20 are made of materials different from each other. Therefore, it is difficult to weld the welding nut 10 to the plate material 20. "Foreign material" means a combination of different materials that are generally considered difficult to weld.
  • a plurality of protrusions (projections) 12 are provided on the seat surface 11 of the weld nut 10 (projection nuts).
  • the weld nut 10 has three protrusions 12.
  • a bolt hole 13 penetrates on the central axis X of the welding nut 10.
  • the center of the bolt hole 13 may be slightly eccentric from the central axis X, and at least a part of the bolt hole 13 may be included on the central axis X.
  • Each protrusion 12 is formed longer in the normal direction (radial direction, radial direction) R than in the tangential direction (circumferential direction) ⁇ of the circle centered on the central axis X.
  • each protrusion 12 is formed in a rectangular shape with the normal direction R as the long side M1 and the tangential direction ⁇ as the short side M2.
  • the protrusions 12 are arranged at equal intervals in the tangential direction ⁇ .
  • the plate material 20 is provided with a convex portion 21a on the front surface 21 and a concave portion 22a on the back surface 22 by press working.
  • the uneven portions 22a and 21a are, for example, circular when viewed from the back surface 22 side and the front surface 21 side of the plate material 20. That is, the cross-sectional shape (cross-section orthogonal to the central axis X) of the uneven portions 22a and 21a is a circular shape.
  • the welding nut 10 is arranged on the convex portion 21a of the surface 21 of the plate material 20.
  • the plate material 20 has a bolt through hole 23 and a plurality of protrusion through holes 24.
  • the plate material 20 has three protrusion through holes 24.
  • the bolt through holes 23 and the protrusion through holes 24 are provided in the uneven portions 22a and 21a of the plate material 20.
  • the bolt through hole 23 is provided on the central axis X of the weld nut 10 and penetrates the plate material 20.
  • the bolt through hole 23 is a hole for passing the screw portion 41 of the component assembly bolt 40 (see FIG. 1) as the second fastening member corresponding to the welding nut (first fastening member) 10.
  • the center of the bolt through hole 23 may be slightly eccentric from the central axis X, and at least a part of the bolt through hole 23 may be included on the central axis X.
  • Each protrusion through hole 24 is provided around the bolt through hole 23 and penetrates the plate material 20.
  • Each protrusion through hole 24 corresponds to each protrusion 12 of the welding nut 10 and penetrates each protrusion 12.
  • Each protrusion through hole 24 is formed longer in the normal direction R than in the tangential direction ⁇ of the circle centered on the central axis X.
  • the cross section of each protrusion through hole 24 is formed in a rectangular shape with the normal direction R as the long side L1 and the tangential direction ⁇ as the short side L2.
  • the protrusion through holes 24 are arranged at equal intervals in the tangential direction ⁇ .
  • Each protrusion through hole 24 is slightly larger than each protrusion 12.
  • Each protrusion 12 is fitted into each protrusion through hole 24, and the welding nut 10 is positioned on the surface 21 of the plate material 20.
  • a washer (washer) 30 is arranged on the back surface 22 of the plate material 20.
  • the Zagane 30 is fitted in the recess 22a on the back surface 22 of the plate material 20.
  • the cross-sectional shape of the Zagane 30 is, for example, a circular ring shape. That is, the cross-sectional shapes of the Zagane 30 and the recess 22a correspond to each other.
  • the diameter of the Zagane 30 is preferably the same as or slightly smaller than the diameter of the recess 22a.
  • the thickness of the Zagane 30 is preferably the same or slightly smaller than the depth of the recess 22a.
  • the back surface (lower surface in FIG. 1) 32 of the Zagane 30 is relative to a portion of the back surface 22 of the plate material 20 other than the recess 22a. It is preferable that the surface is flush with the surface 21 side.
  • the Zagane 30 is made of steel.
  • the Zagane 30 can be welded to the welding nut 10.
  • the Zagane 30 is generally provided for various purposes such as bolt loosening prevention, seat surface protection, and airtightness.
  • a bolt through hole 31 for passing the screw portion 41 of the component assembly bolt 40 penetrates through the center of the Zagane 30.
  • the bolt through hole 31 is located on the central axis X.
  • the center of the bolt through hole 31 may be slightly eccentric from the central axis X, and at least a part of the bolt through hole 31 may be included on the central axis X.
  • each protrusion 12 is welded to the Zagane 30 in a state where each protrusion 12 of the welding nut 10 penetrates each protrusion through hole 24 of the plate material 20.
  • the weld nut 10 and the Zagane 30 are welded to each other at each protrusion 12 penetrating each protrusion through hole 24.
  • W in FIG. 1 indicates a welded portion (nugget) between each protrusion 12 and the Zagane 30.
  • the weld nut 10 is not directly welded to the surface 21 of the plate material 20, but is joined to the surface 21 of the plate material 20 by welding the protrusions 12 of the weld nut 10 and the Zagane 30 to each other. There is.
  • each protrusion 12 of the welding nut 10 with the Zagane 30 is performed by, for example, resistance spot welding. That is, the welding nut 10 and the Zagane 30 are sandwiched by a pair of electrodes (not shown), and these are pressurized and energized between the two electrodes. As a result, each protrusion 12 and the Zagane 30 are welded together. At the time of the welding, the tip portion of each protrusion 12 is melted and crushed, so that each protrusion 12 and each protrusion through hole 24 are in a crimped state.
  • the welding nut 10 and the Zagane 30 are welded to each other via the protrusion through holes 24 (each protrusion 12) with the plate material 20 sandwiched therein, so that the welding nut 10 and the Zagane 30 are welded to each other on both surfaces (front surface 21 and back surface 22) of the plate material 20. , Each will be in a crimped state.
  • a welding nut 10 and a component assembling bolt 40 are used to assemble the component (work) 2 to the plate material 20.
  • the component 2 is provided with a bolt through hole 2a for passing the screw portion 41 of the component assembly bolt 40.
  • the mode before assembling the component 2 to the plate material 20 is shown by a solid line, and the mode after assembling is shown by a two-dot chain line.
  • the outer peripheral surface 12a facing the tangential direction ⁇ of each protrusion 12 of the welding nut 10 is each of the plate materials 20.
  • the protrusion through hole 24 is pressed against the inner peripheral surface 24a facing the tangential direction ⁇ by the pressing force F. That is, the tightening torque T is received by the inner peripheral surface 24a facing the tangential direction ⁇ of each protrusion through hole 24 resisting the pressing force F.
  • each protrusion 12 of the welding nut 10 is formed through each protrusion through hole 24 from the surface 21 side of the plate material 20.
  • the welding nut 10 and the plate material 20 are made of different materials that are difficult to weld, the welding nut 10 can be joined to the plate material 20.
  • the component assembly bolt 40 is inserted from the back surface 22 side of the plate material 20 into the bolt through hole 31 of the Zagane 30 and the plate material 20. , 23, and tighten to the welding nut 10 on the surface 21 side of the plate material 20.
  • the welding nut 10 tends to rotate with respect to the plate material 20 due to the tightening torque T when the component assembly bolt 40 is tightened to the welding nut 10.
  • the welding nut 10 and the Zagane 30 are welded to each other via the protrusion through holes 24 (each protrusion 12) with the plate material 20 interposed therebetween, so that both sides (front surface 21 and back surface 22) of the plate material 20 are welded to each other. In addition, they are in a state of being crimped.
  • the Zagane 30 may have a function other than the function of joining the welding nut 10 to the plate material 20, it is necessary to prepare a dedicated member only for joining the welding nut 10 to the plate material 20. No.
  • each protrusion 12 and each protrusion through hole 24 are formed longitudinally in the normal direction R, the outer peripheral surface 12a facing the tangential direction ⁇ of each protrusion 12 and each protrusion through hole 24 The contact area with the inner peripheral surface 24a facing the tangential direction ⁇ can be increased.
  • the recess 22a facilitates positioning of the Zagane 30 on the back surface 22 of the plate material 20.
  • the tips of the protrusions 12 are melted and crushed, so that the protrusions 12 and the protrusion through holes 24 are in a crimped state.
  • the weld nut 10 is less likely to be displaced in the tangential direction ⁇ or the normal direction R with respect to the plate material 20.
  • the component 2 to be assembled by the component assembly bolt 40 is attached to the plate material 20. It can be fixed more securely.
  • steel and aluminum for example, steel and titanium (including titanium alloy), steel and resin, steel and carbon fiber, and various other combinations can be considered. Will be.
  • the material of the welding nut 10 and the material of the Zagane 30 in addition to steel and steel, for example, aluminum and aluminum, titanium and titanium, and various other combinations can be considered. Further, as a combination of steel and steel, various other combinations such as carbon steel and carbon steel, stainless steel and stainless steel, carbon steel and stainless steel, etc. can be considered.
  • protrusions 12 and holes 24 It is not necessary to provide a plurality of protrusions 12 and holes 24, respectively, but at least one protrusion 12 and a protrusion through hole 24 may be provided.
  • the cross section of the protrusion through hole 24 has a rectangular shape that is longer in the normal direction R than the tangential direction ⁇ , but is not limited to this.
  • the cross section of the protrusion through hole 24 is preferably long in the normal direction R rather than the tangential direction ⁇ as much as possible, and in addition to the rectangular shape, for example, a triangular shape or a pentagonal shape long in the normal direction R.
  • a polygonal shape, an elliptical shape long in the normal direction R, and the like are preferable.
  • the cross section of the protrusion through hole 24 may be a perfect circle shape, a square shape, or a shape long in the tangential direction ⁇ , and particularly when the tightening torque T is small, such a cross-sectional shape. Also, the tightening torque T can be sufficiently tolerated.
  • the shape of the protrusion 12 is the same as above.
  • the recess 22a does not necessarily have to be provided. When the recess 22a is not provided on the back surface 22 of the plate material 20, it is preferable to provide the recess 22 on the component 2.
  • the cross-sectional shapes of the Zagane 30 and the recess 22a are both circular, but the cross-sectional shape is not limited to this.
  • the cross-sectional shapes of the Zagane 30 and the recess 22a may be polygonal shapes corresponding to each other.
  • the cross-sectional shapes of the Zagane 30 and the recess 22a may be rectangular shapes corresponding to each other, for example.
  • the welding nut 10 tends to rotate with respect to the plate material 20 due to the tightening torque T when the component assembly bolt 40 is tightened to the welding nut 10.
  • the Zagane 30 is pulled by the protrusion 12 and tries to rotate.
  • the corner portion 33 of the Zagane 30 to be rotated is caught on the inner peripheral surface 22b of the recess 22a, so that the rotation of the Zagane 30 is suppressed.
  • a larger tightening torque T can be tolerated as compared with the case where the cross-sectional shapes of the Zagane 30 and the recess 22a are both circular.
  • the protrusion 12 and the protrusion through hole 24 have a perfect circular shape or a shape long in the tangential direction ⁇ , it is advantageous in allowing the tightening torque T.
  • the protrusion 12 is provided on the seat surface 11 of the weld nut (first fastening member) 10, but the protrusion 12 is not limited thereto.
  • the protrusion 35 may be provided on the seat surface 34 of the Zagane 30 instead of the weld nut (first fastening member) 10.
  • the seat surface 11 of the weld nut (first fastening member) 10 is preferably flat without the protrusion 12.
  • protrusions 12 and 35 may be provided on both the weld nut (first fastening member) 10 and the Zagane 30, respectively. That is, the protrusions 12 and 35 may be provided on at least one of the bearing surfaces 11 and 34 of the weld nut (first fastening member) 10 and the Zagane 30.
  • the first fastening member is a welding nut 10
  • the second fastening member is a bolt 40 for assembling parts
  • the first fastening member may be a welding bolt 50
  • the second fastening member may be a nut 60 for assembling parts.
  • the welding bolt (first fastening member) 50 and the component assembling nut (second fastening member) 60 correspond to each other.
  • protrusions 52 and 35 may be provided on at least one of the bearing surfaces 51 and 34 of the welding bolt (first fastening member) 50 and the Zagane 30. For example, as shown in FIG.
  • a protrusion 52 may be provided on the seat surface 51 of the welding bolt 50, and the protrusion 52 may penetrate the protrusion through hole 24 of the plate material 20.
  • the threaded portion 53 of the welding bolt 50 is passed through the bolt through hole 23 of the plate material 20. That is, the first fastening member is one of a nut and a bolt, the second fastening member is one of a nut and a bolt, and the first fastening member and the second fastening member correspond to each other. Just do it.
  • the bolt through hole 23 may be a hole for passing the bolt (welding bolt 50 or component assembly bolt 40) of the first fastening member and the second fastening member.
  • the part (work) 2 may have any configuration as long as it can be assembled to the plate material 20 with bolts and nuts.
  • the welding method between the protrusion 12 and the Zagane 30 is not limited to resistance spot welding, and may be, for example, arc welding.
  • the first fastening member (welded nut 10, welded bolt 50), which is either a nut or a bolt, is different from the first fastening member (welded nut 10, welded bolt 50). It is a method of joining different materials to the plate material 20 formed of the above material, in which the first fastening member (welding nut 10, welding bolt 50) is arranged on the surface 21 of the plate material 20 and the back surface 22 of the plate material 20. In the arrangement step of arranging the first fastening member (welding nut 10, welding bolt 50) and the weldable Zagane 30, and the joining step of joining the first fastening member (welding nut 10, welding bolt 50) to the plate material 20.
  • the first fastening member (welding nut 10, welding bolt 50) and at least one of the seating surfaces 11, 51, 34 of the Zagane 30 are provided with protrusions 12, 52, 35.
  • the fastening member (welding nut 10, welding bolt 50) corresponds to the second fastening member (part assembly bolt 40, component assembly nut 60) which is the other of the nut and the bolt, and is a plate.
  • the material 20 is the bolt (part assembly bolt) of the first fastening member (welding nut 10, welding bolt 50) and the second fastening member (part assembly bolt 40, component assembly nut 60). 40.
  • the joining step is a protrusion.
  • the first fastening member (welding nut 10, welding bolt 50) and the Zagane 30 are welded to each other, so that the first fastening member (welding nut 10, welding bolt 50) is welded to each other. 50) is joined to the plate material 20.
  • the present invention can be applied to a dissimilar material joining structure and a dissimilar material joining method, it is extremely useful and has high industrial applicability.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Resistance Welding (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
  • Bolts, Nuts, And Washers (AREA)
PCT/JP2020/041086 2020-06-25 2020-11-02 異材接合構造及び異材接合方法 WO2021260963A1 (ja)

Priority Applications (4)

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KR1020227043922A KR20230028276A (ko) 2020-06-25 2020-11-02 이재 접합 구조 및 이재 접합 방법
EP20942070.2A EP4140631A4 (en) 2020-06-25 2020-11-02 STRUCTURE FOR ASSEMBLY OF DIFFERENT MATERIALS AND METHOD FOR ASSEMBLY OF DIFFERENT MATERIALS
CN202080100907.9A CN115605311A (zh) 2020-06-25 2020-11-02 异质材料接合结构和异质材料接合方法
US17/994,285 US20230091592A1 (en) 2020-06-25 2022-11-26 Dissimilar material joint structure and method for joining dissimilar materials

Applications Claiming Priority (2)

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JP2020109456A JP6793427B1 (ja) 2020-06-25 2020-06-25 異材接合構造及び異材接合方法
JP2020-109456 2020-06-25

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WO2021260963A1 true WO2021260963A1 (ja) 2021-12-30

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EP (1) EP4140631A4 (ko)
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CN113385842A (zh) * 2021-07-21 2021-09-14 广西汽车集团有限公司 一种螺母焊接总成以及螺母焊接总成的焊接工艺

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CN117895254B (zh) * 2024-03-13 2024-05-28 深圳市振勤电子科技有限公司 一种母排接线螺栓铆接结构

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JPH0985454A (ja) * 1995-09-18 1997-03-31 Honda Motor Co Ltd 融点を異にする二種の金属部材の重ね合せ接合方法
JPH09206955A (ja) * 1996-01-31 1997-08-12 Isuzu Motors Ltd 異種金属の溶接方法
JP2010240678A (ja) 2009-04-02 2010-10-28 Seki Kogyo Kk プレート積層構造、プレート補強構造、プレート接続構造及びプレート積層方法

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EP3936272A1 (en) * 2014-12-15 2022-01-12 Howmet Aerospace Inc. Resistance welding fastener
KR20170011653A (ko) * 2015-07-23 2017-02-02 현대자동차주식회사 파스너 및 이를 이용한 이종모재 접합구조

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JPS5868511A (ja) * 1981-10-17 1983-04-23 永山電子工業株式会社 溶接ナツト
JPH0985454A (ja) * 1995-09-18 1997-03-31 Honda Motor Co Ltd 融点を異にする二種の金属部材の重ね合せ接合方法
JPH09206955A (ja) * 1996-01-31 1997-08-12 Isuzu Motors Ltd 異種金属の溶接方法
JP2010240678A (ja) 2009-04-02 2010-10-28 Seki Kogyo Kk プレート積層構造、プレート補強構造、プレート接続構造及びプレート積層方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113385842A (zh) * 2021-07-21 2021-09-14 广西汽车集团有限公司 一种螺母焊接总成以及螺母焊接总成的焊接工艺

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JP6793427B1 (ja) 2020-12-02
US20230091592A1 (en) 2023-03-23
EP4140631A4 (en) 2023-09-06
KR20230028276A (ko) 2023-02-28
CN115605311A (zh) 2023-01-13
EP4140631A1 (en) 2023-03-01

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